Transistor Mica Insulators, Mounting Kits Datasheet by Keystone Electronics

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Tel (718) 956-8900
Fax (718) 956-9040
(800) 221-5510
kec@keyelco.com
www.keyelco.com
31-07 20th Road – Astoria, NY 11105-2017
RoHS COMPLIANT
~
ISO 9001 CERTIFIED
TRANSISTOR MICA INSULATORS & MOUNTING KITS
TRANSISTOR INSULATORS
TRANSISTOR MOUNTING KITS
These precision stamped mica insulators provide good thermal conductivity:
.009 watts per square inch per degree celsius per inch in thickness.
Excellent thermal resistance 1100°F. (59C) Dielectric constant of 7 at 1000 KHz.
FOR TO-3 CASEFOR TO-220 CASE
Complete Kits or Individulal Hardware
Pre-Packaged
Uniform Hardware at Low Cost
These pre-packaged universal mounting kits provide
all the necessary hardware and insulators required
to securely mount the semiconductor to the chassis.
Purchase the complete kit consisting of all hardware
included in one package. Your choice of individual
items available in 100 piece packages. Semicon-
ductors customer supplied.
CAT. NO. 4725 Complete Mounting Kit
ITEM CAT. NO. DESCRIPTION QTY.
A4696 6-32 Screw 2
B4651 Mica Insulator 1
C4698 Shoulder Washer 2
D4699 Metal Washer 2
E4004 Solder Terminal 1
F4700 Lockwasher 2
G4701 6-32 Nut 2
CAT. NO. 4724 Complete Mounting Kit
ITEM CAT. NO. DESCRIPTION QTY.
A4690 4-40 Screw 1
B4672 Mica Insulator 1
C3049 Shoulder Washer 1
E4693 Lockwasher 1
G4694 4-40 Nut 1
FOR TO-66 CASE
Rapid Heat Dissipation
High Dielectric Strength
Low Cost
CAT. ID OD For Screw
NO. Inside Dia. Outside Dia. Size
4678 .120 (3.1) .375 (9.5) 4
4679 .144 (3.7) .375 (9.5) 6
4680 .171 (4.3) .500 (12.7) 8
4681 .196 (5.0) .625 (15.9) 10
4682 .260 (6.6) .750 (19.0) 1/4
4683 .328 (8.3) .875 (22.2) 5/16
CAT. NO. A B CD
4651 1.625 (41.3) 1.093 (27.8) .093 (2.36) .166 (4.2)
4652 1.560 (39.6) 1.050 (26.7) .203 (5.15) .171 (4.4)
4653 1.655 (42.1) 1.063 (27.0) .166 (4.2) .166 (4.2)
4636 1.655 (42.1) 1.063 (27.0) .052 (1.32) .166 (4.2)
4644 1.655 (42.1) 1.063 (27.0) .270 (6.9) .166 (4.2)
1.375 [34.9]
.960 [24.4]
.200 [5.1]
.380 [9.7]
.780
[19.8]
.156 [4.0] DIA.
(2) PLS
.045 [1.14] DIA.
(2) PLS
1.500 [38.1]
.960 [24.4]
.750
[19.1]
.380 [9.7]
.166 [4.2] DIA.
(2) PLS
.200 [5.1]
.080 [2.03] DIA.
(2) PLS
1.594 [40.5]
1.187 [30.2]
.430 [10.9]
.521 [13.3]
1.141
[29.0]
P
.142 [3.6] DIA.
(2) PLS
.059 [1.50] W. x
.086 [2.18] H. .055 [1.40]
DIA.
.515 [13.1]
.440 [11.2]
.750 [19.1]
1.000 [25.4]
.600 [15.3]
.140 [3.6] DIA.
(2) PLS
.580 [14.8]
.072 [1.9]
.200 [5.1]
.800 [20.3]
.505 [12.9]
.065 [1.65] DIA.
(2) PLS
.141 [3.6]
DIA.
1.655 [42.1]
1.187 [30.2]
.521 [13.2]
1.063
[27.0]
.166 [4.2] DIA.
(4) PLS
.026 [0.66]
.105 [2.7]
.072 [1.9]
.580 [14.8]
.072 [1.9]
.860 [21.9]
.520 [13.2]
.065 [1.65] DIA.
(2) PLS
A DIA.
.200 [5.1]
.430 [10.9]
.521 [13.3]
1.187 [30.2]
1.562 [39.7]
1.062
[27.0]
.156 [4.0] DIA.
(2) PLS
.125 [3.2] DIA.
(2) PLS
B
.521 [13.3]
.430 [10.9]
1.187 [30.2]
A
(2) PLS
(2) PLS
C DIA.D DIA.
I.D.
O.D.
CAT. NO. A
4672 .141 (3.6)
4673 .115 (2.9)
FOR TO-3 CASES
FOR TO-220 CASE (2-PIN) FOR TO-220 CASE (3-PIN)
PLASTIC CASES
FOR THREADED STUD TRANSISTORS
FOR TO-3 CASES FOR TO-66 CASES
A
G
E
C
NOT SUPPLIED
CHASSIS
B
NOT SUPPLIED
B
CHASSIS
A
D
E
F
G
C
C
NOT SUPPLIED
CHASSIS
A
B
E
D
CAT. NO. 4726 Complete Mounting Kit
ITEM CAT. NO. DESCRIPTION QTY.
A4696 6-32 Screw 2
B4666 Mica Insulator 1
C4698 Shoulder Washer 2
D4699 Metal Washer 2
E4004 Solder Terminal 1
F4700 Lockwasher 2
G4701 6-32 Nut 2
MATERIAL: .003 (.08) ± .001 (.02) Thick Mica
CAT. NO. 4664 CAT. NO. 4666
CAT. NO. 4661CAT. NO. 4667CAT. NO. 4662
CAT. NO. 4663 CAT. NO. 4671
FOR DO-4, TO-59, TO-60, TO-62 CASES
CAT. NO. 4729 Complete Mounting Kit
ITEM CAT. NO. DESCRIPTION QTY.
A4681 Mica Insulator 1
B4702 Shoulder Washer 1
C4704 Solder Terminal 1
D1477 Lockwasher 1
E4705 10-32 Nut 1
FOR DO-5, TO-48, TO-61 CASES
CAT. NO. 4730 Complete Mounting Kit
ITEM CAT. NO. DESCRIPTION QTY.
A4682 Mica Insulator 1
B4711 Shoulder Washer 1
C4712 Solder Terminal 1
D1476 Lockwasher 1
E4713 1/4-28 Nut 1
113

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